Functional Rating for Knee Arthroplasty: Comparison of Three Scoring Systems

• DOI: 10.3928/0147-7447-20030201-15
• Publication Date: 2019-05-06T17:52:48Z
• Authors: Raymond Y L Liow; Karen Walker; Mohammad A Wajid; Gurinder Bedi; Catherine M E Lennox
• Keywords: Cohen's kappa; Kappa; Rating system; Oxford knee score

This study evaluated the reliability of three rating systems for total knee arthroplasty. Twenty-nine patients were assessed by six observers with American Knee Society Score, British Orthopaedic Association and Oxford 12-item questionnaire. The inter- intraobserver variations calculated Score as was reproducibility Components scores agreement using Kappa statistics. had smaller interobserver variation compared to greatest systems. attributed equal weighting its component variables. questionnaire, a self-administered questionnaire that eliminates error, emerged most reliable system. Observer experience affected Score. Subjective variables more reproducible than objective components.